ZTE ZXHN H267N support

It is up to you or someone else who has access to the device to be able to add it

having the FCC ID helps a little bit

first steps would be

  1. open the case and record the chip models, identify the UART pins
  2. connect to serial console with UART adapter to see if bootloader supports TFTP
  3. study a commit for a similar board to create a new DTS file and makefile profile
  4. build an initramfs-kernel.bin image to load over TFTP for testing